1 John 4:21 explicitly commands that loving God requires loving brother, grounding the principle.

1 John 3:22-24 expands on keeping commandments as abiding in God, linking belief and love.

1 John 3:14 links love for brothers to passing from death to life—reinforcing that love for God's children is evidence of salvation.

1 John 3:10 identifies God's children by practicing righteousness and loving their brother—the same test of genuine love and obedience.

John 15:17 reiterates the command to love one another, part of the obedience in 5:2.

John 13:35 says love for one another marks discipleship, paralleling 5:2's evidence of loving God's children.

John 13:34 gives Jesus' new commandment to love one another, which 5:2 includes as obedience.

Deuteronomy 10:12 calls Israel to love God and walk in His ways, a parallel to the love and obedience in 5:2.

In 1 Corinthians 7:19, Paul states circumcision is nothing but keeping God's commandments is what matters — echoing the priority of obedience here.

In John 14:15, Jesus directly says 'If you love me, you will keep my commandments' — the same love-obedience link as here.

In Matthew 22:37, Jesus commands love for God with all one's being — the foundational command that underlies loving God and keeping His commandments here.

In Daniel 9:4, Daniel prays to God who keeps covenant with those who love Him and keep His commandments — the same two criteria as here.

Psalm 97:10 calls those who love the LORD to hate evil — linking love for God with moral action, paralleling John's command to obey.

Joshua 22:5 exhorts loving the LORD and keeping His commandments — a direct parallel to John's test of genuine love for God's children.

Deuteronomy 30:16 explicitly links loving God and keeping His commandments — the same dual emphasis John uses to define love for God's children.

Deuteronomy 11:22 commands loving the LORD and keeping His commandments — directly paralleling John's linkage of love and obedience here.

Deuteronomy 5:10 states God shows love to those who love Him and keep His commandments, echoing 5:2.

In Matthew 25:40, Jesus identifies serving the least as serving Him — linking love for God to love for His children, parallel to the logic here.

In 1 Peter 1:22, obedience to the truth purifies for sincere brotherly love—echoing that love for others flows from obeying God's commands.

In Romans 12:10, Paul commands brotherly affection — directly addressing love for fellow believers, which 1 John 5:2 ties to loving God.

Revelation 12:17 describes the faithful as those who keep God's commandments—the same identifying mark as loving God and his children.

1 Kings 3:3 describes Solomon loving the LORD and walking in statutes — an example of the love-obedience pattern, though imperfectly.